[PATCH] resolve: don't abort resolve -l even when no merge is in progress

[Siddharth Agarwal]

# HG changeset patch
# User Siddharth Agarwal <sid0 at fb.com>
# Date 1400875831 25200
#      Fri May 23 13:10:31 2014 -0700
# Node ID d7e972540001ab42a77443a2ccd6d3968d9b55b7
# Parent  9fb6f328576ac4e38f4e5071c4d669a6ceb3a76e
resolve: don't abort resolve -l even when no merge is in progress

This broke some internal automation that was quite reasonably checking for
unresolved files as a way to determine whether a merge happened cleanly. We
still abort for resolve --mark etc.

diff --git a/mercurial/commands.py b/mercurial/commands.py
--- a/mercurial/commands.py
+++ b/mercurial/commands.py
@@ -4921,7 +4921,7 @@
 
     ms = mergemod.mergestate(repo)
 
-    if not ms.active():
+    if not ms.active() and not show:
         raise util.Abort(_('resolve command not applicable when not merging'))
 
     m = scmutil.match(repo[None], pats, opts)
diff --git a/tests/test-histedit-non-commute-abort.t b/tests/test-histedit-non-commute-abort.t
--- a/tests/test-histedit-non-commute-abort.t
+++ b/tests/test-histedit-non-commute-abort.t
@@ -85,8 +85,6 @@
 
 log after abort
   $ hg resolve -l
-  abort: resolve command not applicable when not merging
-  [255]
   $ hg log --graph
   @  changeset:   6:bfa474341cc9
   |  tag:         tip
diff --git a/tests/test-resolve.t b/tests/test-resolve.t
--- a/tests/test-resolve.t
+++ b/tests/test-resolve.t
@@ -42,9 +42,12 @@
   no more unresolved files
   $ hg commit -m 'resolved'
 
-resolve -l should error since no merge in progress
+resolve -l should be empty
 
   $ hg resolve -l
+
+resolve -m should abort since no merge in progress
+  $ hg resolve -m
   abort: resolve command not applicable when not merging
   [255]
 
diff --git a/tests/test-shelve.t b/tests/test-shelve.t
--- a/tests/test-shelve.t
+++ b/tests/test-shelve.t
@@ -262,8 +262,6 @@
   summary:     second
   
   $ hg resolve -l
-  abort: resolve command not applicable when not merging
-  [255]
   $ hg status
   A foo/foo
   ? a/a.orig